Four Seasons 39035 A/C Expansion Valve

Four Seasons 39035 Expansion Valve

Four Seasons 39035 is a block-type A/C expansion valve for R134A systems, built in aluminum for precise refrigerant metering in the HVAC circuit. It is a direct-fit style replacement for select BMW and Mini applications, including BMW X3 and Mini Cooper models, where stable evaporator feed control is critical to consistent cabin cooling.

Key Features

• Block-type A/C expansion valve for R134A refrigerant systems
• Aluminum construction with aluminum finish
• Female insert O-ring liquid and suction connections
• Mounting hole quantity: 2
• Meets or exceeds OEM requirements
• Style: w/o solenoid
• Super heat setting: -1.500
• Compatible with BMW and Mini HVAC service applications

Product Details

The Four Seasons Expansion Valve line focuses on accurate refrigerant flow control at the evaporator inlet. Part number 39035 uses female O-ring fittings on both suction and liquid sides, with No. 12 suction inlet and outlet thread diameters and No. 6 liquid inlet / No. 8 liquid outlet thread diameters. The valve is specified for R134A systems and is listed as a block type design, making it a practical replacement for vehicles that require OEM-style A/C flow restriction and expansion control. This part cross-references UAC EX10151C for the same application.

Vehicle Fitment

• Fits 2007-2016 Mini Cooper, N/A
• Fits 2011-2016 Mini Cooper Countryman, N/A
• Fits 2013-2016 Mini Cooper Paceman, N/A
• Fits 2004-2010 BMW X3, N/A
• Fits 2001-2006 BMW 325Ci, N/A
• Fits 2001-2006 BMW 325i, N/A
• Fits 2001-2006 BMW 330Ci, N/A
• Fits 2001-2006 BMW 330i, N/A
• Fits 2001-2006 BMW M3, N/A
• Fits 2001-2005 BMW 320i, N/A
• Fits 2001-2005 BMW 325xi, N/A
• Fits 2001-2005 BMW 330xi, N/A
• Fits 2000 BMW 323Ci, N/A
• Fits 2000 BMW 323i, N/A
• Fits 2000 BMW 323ti, N/A
• Fits 2000 BMW 328Ci, N/A
• Fits 2000 BMW 328i, N/A
• Fits 1999 BMW 323i, N/A
• Fits 1999 BMW 323is, N/A
• Fits 1999 BMW 323ti, N/A

Common A/C Issues This Part Addresses

• Warm air from the vents caused by incorrect refrigerant metering
• Uneven evaporator performance in BMW and Mini HVAC systems
• Loss of cooling efficiency after expansion valve wear or restriction
• Pressure imbalance in an R134A air conditioning circuit
• Intermittent cabin cooling on vehicles with a failing block-style valve

Installation Notes and Tips

Confirm the vehicle uses an R134A system and verify the connection style, thread diameters, and mounting points before installation. Replace the valve only after the system has been properly evacuated and inspected for contamination, leaks, and compressor debris. For BMW X3 and Mini Cooper HVAC service, matching the original valve configuration is important for correct refrigerant flow and evaporator performance.

Quality Assurance

Four Seasons lists this expansion valve as meeting or exceeding OEM requirements. The part is built to OE-style specifications for the listed BMW and Mini applications, supporting consistent HVAC service and replacement accuracy.